fuel ???

[Savage04]

i have an o.s Fs 72 surpass and was wondering what is the correct % fuel fir it. i am currentley running 10%. is this correct or can i run someting with a higher percentage? thanks

[wamco]

I use powermaster ys/saito 20 20 it works great in everything that requires nitro

[Chip Morrison]

10% nitro will run it just fine. The other stuff will cost more for maybe a hundred or two of more RPM. Personally, it is not worth the cost but its your engine and you can do what you want with it.

Cheers,

Chip

[fsone]

In a four stroke engine you should at least run 15% nitro the need the higher nitro content.

[anderson111]

hi sorry to say, you all are right.fuel cost increasing day by day. you all are master mind, have you any Idea for using other thing for our auto stuff...

THANKS

[fhhuber]

I ran 10% nitro in an OS .91 FS-II for over 3 years.

Using a fuel filter between tank and engine, I went in excess of 1 year without having to touch the needle valve. I was flying the model an average of four 12 min flights a week.

% nitro NEEDED is based on compression ratio, not if its a 2-stroke or 4-stroke.